<!DOCTYPE html>
<html>
<body>

<h1>我的第一张 PHP 页面</h1>

<?php
echo "Hello World! <br>";
?>

<?php  
echo "https://www.w3school.com.cn/php/php_syntax.asp <br>";
?>


<?php
// 这是单行注释

# 这也是单行注释

/*
这是多行注释块
它横跨了
多行
*/
?>

<?php
ECHO "Hello World!<br>";
echo "Hello World!<br>";
EcHo "Hello World!<br>";
?>

<?php
$color="red";
echo "My car is " . $color . "<br>";
echo "My house is " . $COLOR . "<br>";
echo "My boat is " . $coLOR . "<br>";
?>




</body>
</html>